提出一种构造择优量化表的新方法。在一个固定块尺寸的离散余弦变换（DCT）中，该方法可产生优化的率失真特性。
The present paper presents a new method for constructing optimal quantisation tables. The method produces optimal rate-distortion performance in a fixed block size DCT.
最后，导出了反映矢量量化器工作特性和率失真函数之间的数量关系的不等式串。
Finally, a series of inequalities is derived, which gives a quantitative relation between the performance of a vector quantizer and rate-distortion function.
算法对传统二次率失真模型进行了改进，并结合人眼的立体视觉特性，提出了新的码率控制策略。
The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system (HVS) characteristics.
实验证明，基于3维小波变换的3维SPIHT编码算法在对超光谱图像压缩时，表现出了优良的率失真性能。 并且算法复杂度适中，具有嵌入式特性。
The test results show that the 3D SPIHT algorithm based on 3D DWT for hyperspectral images compression is very efficient, the algorithm is embedded and has modest complexity.
JPEG2000是一种新的静止图像编码国际标准，它提供了诸如基于失真度及分辨率的图像渐进恢复，感兴趣区域编码等新特性。
JPEG2000 is a new international standard for still image coding and provides many new features, such as progressive recovery of image by fidelity or resolution and region of interest (ROI) coding.
通过与其他静止图像的压缩标准对比。可以看出实现的VTC编码算法不但有良好的率失真性能，而且具有许多有用的特性。
Comparison with other compression standard for still image shows that the VTC has better rate distortion performance and many attractive useful characteristic.
通过与其他静止图像的压缩标准对比。可以看出实现的VTC编码算法不但有良好的率失真性能，而且具有许多有用的特性。
Comparison with other compression standard for still image shows that the VTC has better rate distortion performance and many attractive useful characteristic.
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